Above you can see [Hans’] creation next to the official Arduino USB-to-serial programmer. He used the same connection scheme, but went with an edge connector for the USB instead of using a mini ...

It's of course backwards compatible with existing Arduino add-ons, but sets itself apart with a new USB controller with lower latency and driver-free operation on Mac and Linux.

Developers, makers and electronic enthusiasts searching for a small Arduino development board may be interested in the aptly named Atto. A small affordable USB development board designed ...

35 x 20mm 50 x 25mm 65 x 30mm “The sizes have been chosen after customer consultation to provide prototype builders and small volume OEMs generous room for their PCB,” said Hammond. Called 1551USB, ...